Langmuir
He invented the 1st incandescent lamp (a type of light bulb).
An incandescent lamp can be used to check continuity of a circuit.
It was simultaneously developed in several places, but T. A. Edison usually gets the credit.
Thomas Alva Edison invented the first practical incandescent lamp in 1879. Many other scientists created the incandescent lights before Edison did, but those lights were not practically useful.
d. incandescent lamp
No, carbon dioxide is not emitted by an incandescent lamp.
An incandescent lamp is not cool to the touch unless it is an extremely low wattage. Heat given off by incandescent lamps is one of the drawbacks of the lamp. Total overall efficiency is reduced by the wasted heat.
The incandescent lamps are very frequently used in all the buildings !
Alexander Lodygin
1859
The Incandescent Lamp
Incandescent lamp